Some states award delegates to candidates on a winner-take-all basis, meaning that the candidate with the most votes in a state is awarded all of that state's delegates. Other states award delegates in proportion to each candidate's share of the primary vote.
Provocative angiography involves a full diagnostic angiogram followed by administration of intra-arterial procoagulant agents to identify an occult bleeding source in patients who have normal test results after lower gastrointestinal bleeding.
On ultrasound, infantile hemangiomas (the most common type of vascular tumor) appear as hypoechoic, heterogenous, well-defined lesions. They contain small cystic and sinusoidal elements. Doppler ultrasound often reveals fast flow, while hemangiomas are in their proliferative phase.n ultrasound, infantile hemangiomas (the most common type of vascular tumor) appear as hypoechoic, heterogenous, well-defined lesions. They contain small cystic and sinusoidal elements. Doppler ultrasound often reveals fast flow, while hemangiomas are in their proliferative phase.